Item 91553067 has must read information.
Comments: this unit is not programmed. You will need to get in touch with a John Deere dealer with the machine's engine serial number to get this programmed. 
Pricing is not set up for this item. Please contact Customer Support with your model and serial number for more information.

CONTROLLER,DEERE ECU

Net Item: No

Item Number:
91553067

Shipping Dimensions:
Weight: 0

Unit of Measure:
EA
Consult Factory:
Yes
CONTROLLER,DEERE ECU - 91553067